Psychology

To describe Touching the Void as a mountaineering documentary would be to do this breathtaking drama an injustice. By intercutting narration from the climbers themselves with a nail-biting reconstruction of their remarkable adventure in the Peruvian Andes, the film has the best of both genres: the authentic stamp of factual storytelling and the edge-of-the-seat tension of a dramatic movie.
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For the first time in 40 years Horizon re-creates a controversial sensory deprivation experiment. Six ordinary people are taken to a nuclear bunker and left alone for 48 hours. Three subjects are left alone in dark, sound-proofed rooms, while the other three are given goggles and foam cuffs, while white noise is piped into their ears

BDD, or Body Dysmorphic Disorder, is a largely undiagnosed medical condition that is said to affect 1% of the British population. Sufferers are obsessed with how they look and can spend hours obsessively grooming themselves. Often misunderstood as a vanity driven obsession, people with BDD are the opposite; they believe they are horrendously ugly. In fact they are so disgusted by their looks, one

Over 40 million Americans have seen Dateline’s ongoing popular series To Catch a Predator, which has caught over two hundred potential child predators. While the show exposed this epidemic, Chris Hansen’s book, To Catch a Predator, shares the true stories of families who have been targeted by predators, revealing the tactics predators use to manipulate their victims and why even cautious families

In 2012, Plymouth born Sarah Colwill was rushed to hospital with what seemed to be a severe migraine. Little did she suspect that when she woke up a few hours later her usual Devon accent would be replaced with one that left her sounding Chinese This sudden change of accent was later diagnosed as foreign accent syndrome a puzzlingly rare condition with no definitive cause.
Sarah is currently de

Michael Mosley explores the latest science about how our personalities are created and whether they can be changed.
Despite appearances, Mosley is a pessimist who constantly frets about the future. He wants to worry less and become more of an optimist. He tries out two techniques to change this aspect of his personality - with surprising results.
He travels to the frontiers of genetics and n

This Fifth Estate documentary was filmed in 1994 and is about a troubled 11 year old called Evan and his family. His parents agreed to have video cameras installed in their home for a 3 month period which resulted in recording Evan’s emotional abuse.

Horizon reveals the latest research into one of the most mysterious and common human experiences – pain.
Breakthroughs have come from studying a remarkable woman in London who has felt no pain at all in her life, a man in the US who cut off his own arm to survive, and three generations of an Italian family who don’t feel extremes of temperature.
We witness a new treatment that involves a pio

On May 23, 2014, in Isla Vista, California, a young man named Elliot Rodger took it upon himself to kill 6 people and injure 14 more near the campus of University of California, Santa Barbara, before turning a gun on himself and taking his own life.
In this "20/20" special we take a closer look at how Elliot came to commit such crimes and for the first time we hear his father speak ou